Coil attachment



July 28, 1925. 1,547,575

w. T. FERGUSON COIL ATTACHMENT Filed Oct. 27, 1924 mllff' yu 0w anew"Patented July 28, 1925.

"UNITED STATES 1,547,576 PATENT ()FFICE.

WALTER I. FERGUSON. OF ST. PAUL, VIRGINIA, ASSIGNOR OF ONE-HALF I'OPELEG L. COLE, OF MAXWELL, VIRGINIA.

COIL ATTAGHL'IENT.

To all whom it may concern:

Be it known that I, lVAL'rnn T. FERGUSON, a citizen of the UnitedStates, residing at St. Paul, in the county of lVise and State ofVirginia, have invented a new and useful Coil Attachment, of which thefollowing is a specification.

This invention relates to vibrator coil attachments and moreparticularly for coil units used on Ford automobiles.

The object of the invention is to provide an inexpensive device forconverting the coil unit such as is used on a Ford car into a threewaycoil which can be used for many purposes.

lVith the foregoing and other objects in view which will appear as thedescription proceeds, the invention'resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed may be made within thescope of what is claimed without departing from the spirit of theinvention.

In the accompanying drawings Figure 1 represents a side elevation of aFord coil unit with this improved attachment shown applied;

Fig. 2 is a plan View thereof; and

Fig. 3 is a detail sectional view of a portion of the attachment and aside elevation of the adjacent portion of the unit.

In the embodiment illustrated a vibrator coil unit 1 such as is usuallyemployed on Ford cars is shown and which is equipped with the contactplates 2.

The device constituting this invention comprises a bracket 10 in theform of a plate preferably constructed of such material as bakelite orother insulating material. This bracket has arms 11 extending laterallyand turned downwardly at right angles located at one end thereof andprovided with clamping screws 12 for securing this portion of thebracket to the unit 1 and which holds the body of the plate spaced fromthe unit. The other end of said plate is bent downwardly at right anglesto the body portion thereof and is equipped with forwardly extendingright angular arms 14 through which are inserted clamping screws 15which are designed to secure this end of the bracket to the side wallsof the unit as is shown clearly in Figs.

1 and 2 and by means of which the bracket is held spaced from the unit.

Binding posts 16, 17 and 18 are carried respectively by the arm 13 ofthe bracket and by the body portion thereof near opposite ends of saidbody portion and are equipped with contact springs 19. Number 16 is thebattery post, number 17 the plug or distribution post and number 18 thetimer post. These posts are equipped with insulation blocks 20 arrangedbetween the springs 19 and the bracket 10.

From the above description it will be obvious that this attachment maybe quickly applied to a vibrator coil unit by simply clamping it bymeans of the screws 12 and 15 to said unit and properly positioning thecontact springs 19 relative to the contact 7 plates and thereby convertthe coil unit into a three way jump spark coil which may be used notonly for Ford car purposes but for many other purposes.

The device 10 is here described and shown as made of such material asbakelite which is an insulating material but obviously it may beconstructed of any other suitable material.

I claim 1. A device for converting a Ford coil unit into a three waycoil comprising a bracket having means for mounting on a coil unit inspaced relation thereto, binding posts carried by said bracket, contactsprings carried by said posts and adapted to engage the contact platesof the coil unit.

2. The combination with a vibrator coil unit having contact plates; of abracket having means for clamping it to said unit and holding it inspaced relation thereto, binding posts carried by said bracket andequipped with contact springs for engaging the contact plates of theunit, and insulation arranged between the spring and the bracket.

3. An attachment of the class described comprising a bracketsubstantially L- shaped in form the members of which are equipped withinwardly extending arms having clamping screws for detachably mountingthe bracket on a coil unit, binding posts carried by the members of saidbracket, contact springs carried by said posts and adapted to engage thecontact plates of a coil unit, and means for insulating the bracket fromthe springs.

4. A coil unit attachment of the class described comprising asubstantially L-shaped bracket the members of which have inwardlyextending arms at the side edges thereof equipped With clamping screwsfor securing the bracket to a unit, binding posts carried by the membersof said bracket, contact springs carried by said posts and adapted toengage the contact plates of the unit,

and insulation blocks arranged between said springs and bracket. 7 V Intestimony that I claim the foregoing as my own I have hereto affixed mysignature in the presence of two Witnesses.

' W'ALTER T. FERGUSON. WVitnesses:

FRED B. GREEN,

H. B Bmnscomn.

